标准摘要
[中文适用范围]: 本文件适用于所有类型的剂量计,无论其旨在测量何种类型的辐射。根据本文件进行的测试确定剂量计是否能够在内部状态(适用于测量背景或环境辐射)下正确测量单个辐射脉冲。剂量计对重复脉冲的特性预计优于具有相同参数的单个辐射脉冲,但差于连续辐射,即介于这两个极端条件的特性之间。脉冲辐射源的特征参数为:工作场所出现的辐射脉冲期间的最大剂量率(H_pulse,max)、每次辐射脉冲的最大剂量(H_pulse,max)、辐射脉冲的最小持续时间(t_pulse,min)以及脉冲重复频率的范围(f_pulse)。附录A提供了一些典型工作场所中发生脉冲辐射的参数值。本文件将辐射场的脉动视为如粒子能量和辐射入射方向等额外的影响量。因此,本文件描述的方法与仪器专用标准中的所有测试是附加的。本文件描述确定剂量计以下特征参数的方法:脉冲中可测量的最大剂量率(H_meas,max)、脉冲中可测量的最大剂量(H_meas,max)、最小脉冲持续时间(t_meas,min)以及脉冲重复频率的范围(f_meas,min 至 f_meas,max)。这些参数可能因探测器不同而相互关联。本文件适用于光子辐射,但基本上可适应任何具有合适脉冲参考场的辐射类型。本文档中的“剂量”一词是指剂量当量,但要求也可适应空气比释动能、照射量或其他表示辐射量的量。脉冲重复频率(f_pulse)已包含在测试程序中,但为此需要进行额外的工作。特别是,周围加速器的辐射条件下缺少参考场(高脉冲重复频率、超短脉冲)。 [外文原描述]: IEC TS 63050:2019 applies to all types of dosemeters, irrespective of the type of radiation intended to be measured. Tests according to this document determine whether a single radiation pulse can be measured correctly even if the dosemeter is in the internal state relevant for measuring background or environmental radiation. The annex in the document gives some parameter values for typical workplaces where pulsed radiation occurs. This document considers the pulsation of the radiation field as an additional influence quantity like particle energy and direction of radiation incidence. Therefore, the tests described are additional to all the tests in the instrument specific standards. This document describes methods to determine the following characteristic parameters of the dosemeters: the maximum measurable dose rate in the pulse, Hmeas,max the maximum measurable dose in the pulse, Hmeas,max the minimal pulse duration, tmeas,min and the range for the pulse repetition frequency, fmeas,min to fmeas,max
英文名称Radiation protection instrumentation - Dosemeters for pulsed fields of ionizing radiation